Mauger dumped Verhoeven the day after the show ended, and admitted he had more chemistry with Khanjani.
Khanjani later admitted they'd slept together "several times" during filming.
Bowden called the show a "national phenomenon".
"When you watch it, you want to talk about it; you have to talk about it. It's the perfect format for today and socially relevant, now more than ever before."
Season one's winning couple, Art Green and Matilda Rice, remain a celebrity powerhouse on the local celebrity scene.
Bowden's previous hosting duties include The X Factor NZ and Dancing With the Stars.
Applications are open now for The Bachelor's third season.